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| <p class="text-center"><a href="colormap.php#AcquireImageColormap">AcquireImageColormap</a> • <a href="colormap.php#CycleColormap">CycleColormap</a></p> |
| |
| <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/colormap_8c.html" id="AcquireImageColormap">AcquireImageColormap</a></h2> |
| |
| <p>AcquireImageColormap() allocates an image colormap and initializes it to a linear gray colorspace. If the image already has a colormap, it is replaced. AcquireImageColormap() returns MagickTrue if successful, otherwise MagickFalse if there is not enough memory.</p> |
| |
| <p>The format of the AcquireImageColormap method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType AcquireImageColormap(Image *image,const size_t colors, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>colors</dt> |
| <dd>the number of colors in the image colormap. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/colormap_8c.html" id="CycleColormap">CycleColormap</a></h2> |
| |
| <p>CycleColormap() displaces an image's colormap by a given number of positions. If you cycle the colormap a number of times you can produce a psychodelic effect.</p> |
| |
| <p>WARNING: this assumes an images colormap is in a well know and defined order. Currently Imagemagick has no way of setting that order.</p> |
| |
| <p>The format of the CycleColormapImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType CycleColormapImage(Image *image,const ssize_t displace, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>displace</dt> |
| <dd> displace the colormap this amount. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
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